Whether you get a tan on the beach, in your backyard, in a tanning bed, or through incidental exposure is bad news! Tans are caused by harmful ultraviolet radiation, also known as UV rays, from the sun or tanning lamps which cause skin cell damage.
Vitamin D increases bone strength, lowers blood pressure and reduces the risk of heart attacks, diabetes and rheumatoid arthritis. Even in the sunniest places, Vitamin D is one of the most lacking nutrients in humans worldwide.
Every time you tan, you damage your skin, as this damage builds you speed up the aging of your skin and increase your risk for all types of skin cancer.